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Finding the Fourth Proportional to 308,622.54, 425,944.44 and 187,740.36

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Solution

The fourth proportional to 308,622.54, 425,944.44 and 187,740.36 is: 259,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,622.54 : 425,944.44 = 187,740.36 : x
  2. Step 2: Convert to fraction form
    308,622.54/425,944.44 = 187,740.36/x
  3. Step 3: Cross multiply
    308,622.54x = 425,944.44 × 187,740.36
  4. Step 4: Simplify right side
    308,622.54x = 79,966,962,505.60
  5. Step 5: Solve for x
    x = 79,966,962,505.60/308,622.54
  6. Step 6: Final answer
    x = 259,109.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.